* {
  box-sizing: border-box;
}

body {
  font-family: "Helvetica Neue", Helvetica, sans-serif;
  max-width: 800px;
}

h1 {
  font-weight: normal;
  font-size: 48px;
  margin: 0;
}
.subtitle {
  margin-top: 0;
  margin-bottom: 40px;
}
label {
  font-size: 24px;
}
textarea, .controls {
  display: block;
  width: 100%;
}

textarea {
  height: 300px;
  max-height: 30vh;
  border: 1px solid #bbb;
  border-radius: 5px;
}
textarea:hover {
  border-color: #888;
}

.controls {
  text-align: center;
  margin-top: 15px;
}
.controls button {
  width: 100px;
  margin: 0 5px;
  padding: 5px 0;
  font-size: 18px;
  background-color: white;
  border: 1px solid #2eb400;
  border-radius: 5px;
}
.controls button:hover {
  background-color: #2eb400;
  color: white;
  cursor: pointer;
}

.note {
  margin-top: 40px;
}